2.1 - Towards Roll and Sheet film for Still Photography Cellulose nitrate roll film replaced paper-base negatives (1884) in roll film cameras in 1889. Roll-film holders were developed for existing collodion wet and gelatin dry plate cameras. And there were numerous new amateur roll film cameras created for the new fast transparent film.
2 Answers. , Mechanical Engineer. all these colleges have almost the best mechanical engineering program: Massachusetts Institute of Technology , Stanford University, University of CaliforniaââBerkeley,University of Illinois, Cornell University , Princeton University , Carnegie Mellon University, Purdue University......
Carnegie Mellon's Heinz College is rated as one of the best education institutions in the world. Unlike many graduate schools, Heinz is not organized along academic departments.